2006-12-17 02:42:00 · 8 answers · asked by priyanshu_modi 1 in Cars & Transportation ➔ Motorcycles
What that is used for is to figure out the displacement of a cylinder in an engine. You would then multiply your answer X number of cyclinders and you have the displacement of your engine (5.2 liter or 318ci)
Bore is the measured diameter of the cylinder hole.
Stroke is the distance the piston moves within the cylinder.
But here is a really cool page that describes it better.
http://auto.howstuffworks.com/question685.htm
So if someone says their motor is bored and stroked, it means they have fitted bigger pistons that move farther then the last set and hence increased their total displacement.
Happy holidays
2006-12-17 02:51:56 · answer #1 · answered by shovelkicker 5 · 0⤊ 1⤋
Bore is the diameter of the piston. Stroke is how much the piston moves up and down in the cylinder. 1/2 the diameter squared X pi X the stroke gives you the displacement of the cylinder. Multiply this by the number of pistons to get total displacement of the engine.
2006-12-17 02:46:09 · answer #2 · answered by Anonymous · 1⤊ 0⤋
Bore is the size of the block cylinder opening in which the piston travels. If someone tell you they, 'had it punched thirty over.' That indicates the cylinder wall is .030" wider then OEM.
Stroke is the distance the piston travels within that cylinder, this is determined by the length of the 'connecting' rod. The 'connecting rod' is held in place by the wrist pin at the piston end and the crankshaft on the other end.
2006-12-18 03:37:06 · answer #3 · answered by LifeRyder 4 · 0⤊ 0⤋
bore is the size of the hole,,for the piston,,stroke it the length the piston and rod travels up and down,,this is what creates horse power,,but that's what is meant by it,,good luck.
2006-12-17 02:46:41 · answer #4 · answered by dodge man 7 · 0⤊ 0⤋
Bore = The size of the hole.
Stroke = How deep it is.
2006-12-17 02:45:30 · answer #5 · answered by Mr. KnowItAll 7 · 0⤊ 0⤋
THE BORE IS THE SIZE OF THE PISTON.AND STROKE IS THE LEANTH OF THE ROD
2006-12-20 11:57:44 · answer #6 · answered by clay b 1 · 0⤊ 0⤋
bore is the diameter of a cylinder
stroke is the length from bottom to top of cylinder
2006-12-17 04:36:06 · answer #7 · answered by o wyrick 1 · 0⤊ 1⤋
BORE= diameter of cylinder.
STROKE= distance piston travels from top dead center to bottom dead center.
2006-12-17 16:01:46 · answer #8 · answered by strech 7 · 0⤊ 0⤋